Diamond is harder than graphite because (a) Graphite is planer (b) Diamond has free electron (c) Graphite is sp3 hybridised Diamond is harder than graphite because (a) Graphite is planer (b) Diamond has free electron (c) Graphite is sp3 hybridised November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related